Abstract
Partial thinning of peach ( Prunus persica L. Batsch) during bloom to 50% of the necessary level by hand, and followed by adjustment hand thinning at 42 days after full bloom (DAFB) was compared to a similar degree of thinning accomplished entirely at 42 DAFB by hand. Partial flower thinning altered the distribution of fruit by diameter, increasing the percentage of large diameter (≥62.0 mm) fruit harvested compared to unthinned trees or trees thinned entirely at 42 DAFB. Although shoot number per limb was not altered by thinning time, the distribution of shoots by length was affected, increasing the percentage of long shoots (≥20.0 cm). Compared to unthinned trees and trees thinned at 42 DAFB, partial flower thinning increased the subsequent development of flower buds per shoot and the number of flower buds per node. Number of flower buds on the proximal five nodes of shoots 15.0-30.0 cm in length was increased, although not on shoots 5.0-7.0 cm in length. Additional trials established that airblast spray application of AMADS was effective in achieving a similar level of thinning as that accomplished by partial flower thinning by hand in previous experiments. The degree of flower removal exhibited a linear response to chemical concentration. Fruit diameter on chemically flower-thinned trees was greater at adjustment thinning time, when compared to trees thinned by hand at 42 DAFB only. Distribution of fruit at harvest indicated a larger percentage of fruit >65.0 mm in trees which received partial flower thinning in comparison to trees thinned at 42 DAFB only. As a result, overall crop value was increased, based on the commercial processing peach price structure at the time of harvest. Chemical name used: 1-aminomethanamide dihydrogen tetraoxosulfate (AMADS)
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Claims 11
Claim · model-written summary
Partial flower thinning increased the share of large fruit relative to unthinned and later thinned trees.
- Taxon
- peach
Prunus persicat0 - Treatment
- Partial flower thinninge0
- Outcome
- percentage of large diameter (≥62.0 mm) fruite0
- Direction
- increasinge0
- Comparator
- unthinned trees or trees thinned entirely at 42 DAFBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Partial flower thinning altered the distribution of fruit by diameter, increasing the percentage of large diameter (≥62.0 mm) fruit harvested compared to unthinned trees or trees thinned entirely at 42 DAFB”
t0“peach”
Claim · model-written summary
Thinning time did not alter shoot number per limb.
- Taxon
- peachPrunus persicat0
- Treatment
- thinning timee0
- Outcome
- shoot number per limbe0
- Direction
- not alterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot number per limb was not altered by thinning time”
t0“peach”
Claim · model-written summary
Partial thinning increased the share of long shoots.
- Taxon
- peachPrunus persicat0
- Treatment
- Partial Flower Thinningt0
- Outcome
- percentage of long shoots (≥20.0 cm)e0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the distribution of shoots by length was affected, increasing the percentage of long shoots (≥20.0 cm)”
t0“Partial Flower Thinning Increases Shoot Growth, Fruit Size, and Subsequent Flower Formation of Peach”
Claim · model-written summary
Partial thinning raised flower buds per shoot.
- Taxon
- peachPrunus persicat0
- Treatment
- partial flower thinninge0
- Outcome
- flower buds per shoote0
- Direction
- increasede0
- Comparator
- unthinned trees and trees thinned at 42 DAFBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to unthinned trees and trees thinned at 42 DAFB, partial flower thinning increased the subsequent development of flower buds per shoot and the number of flower buds per node”
t0“peach”
Claim · model-written summary
Partial thinning raised flower buds per node.
- Taxon
- peachPrunus persicat0
- Treatment
- partial flower thinninge0
- Outcome
- number of flower buds per nodee0
- Direction
- increasede0
- Comparator
- unthinned trees and trees thinned at 42 DAFBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to unthinned trees and trees thinned at 42 DAFB, partial flower thinning increased the subsequent development of flower buds per shoot and the number of flower buds per node”
t0“peach”
Claim · model-written summary
Bud number on proximal nodes increased on medium shoots but not short shoots.
- Taxon
- peachPrunus persicat0
- Treatment
- Partial Flower Thinningt0
- Outcome
- Number of flower buds on the proximal five nodese0
- Direction
- increasede0
- Qualifier
- shoots 15.0-30.0 cm in lengthe0
- Comparator
- shoots 5.0-7.0 cm in lengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of flower buds on the proximal five nodes of shoots 15.0-30.0 cm in length was increased, although not on shoots 5.0-7.0 cm in length”
t0“Partial Flower Thinning Increases Shoot Growth, Fruit Size, and Subsequent Flower Formation of Peach”
Claim · model-written summary
Airblast AMADS achieved thinning similar to hand flower thinning.
- Taxon
- peachPrunus persicat0
- Treatment
- airblast spray application of AMADSe0
- Outcome
- level of thinninge0
- Direction
- similare0
- Comparator
- partial flower thinning by hande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“airblast spray application of AMADS was effective in achieving a similar level of thinning as that accomplished by partial flower thinning by hand”
t0“peach”
Claim · model-written summary
Flower removal increased linearly with chemical concentration.
- Taxon
- peachPrunus persicat0
- Treatment
- chemical concentratione0
- Outcome
- degree of flower removale0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The degree of flower removal exhibited a linear response to chemical concentration”
t0“peach”
Claim · model-written summary
Chemical flower thinning produced greater fruit diameter at adjustment than later hand thinning.
- Taxon
- peachPrunus persicat0
- Treatment
- chemically flower-thinned treese0
- Outcome
- Fruit diametere0
- Direction
- greatere0
- Comparator
- trees thinned by hand at 42 DAFB onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit diameter on chemically flower-thinned trees was greater at adjustment thinning time, when compared to trees thinned by hand at 42 DAFB only”
t0“peach”
Claim · model-written summary
Partial flower thinning increased the share of fruit above 65 mm at harvest.
- Taxon
- peachPrunus persicat0
- Treatment
- partial flower thinninge0
- Outcome
- percentage of fruit >65.0 mme0
- Direction
- largere0
- Comparator
- trees thinned at 42 DAFB onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Distribution of fruit at harvest indicated a larger percentage of fruit >65.0 mm in trees which received partial flower thinning in comparison to trees thinned at 42 DAFB only”
t0“peach”
Claim · model-written summary
Partial flower thinning increased crop value.
- Taxon
- peachPrunus persicat0
- Treatment
- Partial Flower Thinningt0
- Outcome
- overall crop valuee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a result, overall crop value was increased, based on the commercial processing peach price structure at the time of harvest”
t0“Partial Flower Thinning Increases Shoot Growth, Fruit Size, and Subsequent Flower Formation of Peach”
The same questions in other papers
pruning · growth · Prunus persica (peach)Results differ
41 papers in the same direction as this paper · 22 in the opposite direction
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- positive
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60 papers more in this group
See all 64 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.